Charles Law

Q.

According to Charles Law, the volume of a gas increases or decreases by ____ of its original volume at $0°\mathrm{C}$ for each degree centigrade rise or ____

Q.

One litre of a gas at ${10}^{\circ }C$ is heated till both its volume and pressure are tripled. Find the new temperature.

1. 2547 K

2. 2167 K

3. 2347 K

4. 2267 K

Q.

If P, V, T represent pressure, volume and temperature of the gas, which of the following is correct representation of Boyle's law?

1. $V\propto \frac{1}{T}$ (at constant P)

2. PV = RT

3. $V\propto \frac{1}{P}$ (at constant T)

4. $PV=nRT$

Q. The correct representation for Charles law is .

1. $\frac{V_1}{T_1}=\frac{V_2}{T_2}$
2. $V_1\times T_1=V_2\times T_2$
3. $\frac{V_1}{T_2}=\frac{V_2}{T_1}$

Q. A gas at $27{}^{\circ }\text{C}$ with a volume of $5\text{L}$ expands by $45\%$, when the temperature is raised. If the pressure is kept constant, what is the final temperature of the gas?

1. 162

Q.

What are the conditions required to measure the volumes of gases in Gay-Lussacs law?

Q. A gas initially $20\text{kPa}$, $1.5\text{L}$ and $260\text{K}$ expands at constant temperature until the pressure drops to $12\text{kPa}$. The gas is then held at the constant pressure of $12\text{kPa}$ and heated until the temperature rises to $320\text{K}$. Calculate the final volume of the gas in litres.​

1. 3.077

Q. A gas at $25{}^{\circ }\text{C}$ with a volume of $6.5\text{L}$ expands by $50\%$, when the temperature is raised. If the pressure is kept constant, what is the final temperature of the gas?

1. $125{}^{\circ }\text{C}$
2. $174{}^{\circ }\text{C}$
3. $198{}^{\circ }\text{C}$
4. $320{}^{\circ }\text{C}$

Q.

At what temperature in ${}^{\circ }C$ will the volume of gas which is originally at $1^{\circ }C$ will double itself at constant pressure.

1. $2^{\circ }C$
2. ${273}^{\circ }C$
3. ${548}^{\circ }C$
4. ${275}^{\circ }C$

Q. A gas initially $15\text{kPa}$, $1.5\text{L}$ and $280\text{K}$ expands at constant temperature until the pressure drops to $12\text{kPa}$. The gas is then held at the constant pressure of $12\text{kPa}$ and heated until the temperature rises to $350\text{K}$. What is the final volume of the gas?

1. $3.35\text{L}$
2. $1.85\text{L}$
3. $2.35\text{L}$
4. $4.50\text{L}$

Q.

Which is true about Boyle's Law?

1. $\frac{P_1}{V_1}=\frac{P_2}{V_2}$

2. $P_1{V}_1=K$(Constant)

3. $P_1{V}_1=P_2{V}_2$

4. $P\propto \frac{1}{V}$

Q. When the pressure of a gas is kept constant, the volume of the gas is inversely proportional to the temperature.

1. True
2. False

Q.

Which of the following expresses Charle's law?

1. $V_1{T}_1=V_2{T}_2$

2. $\frac{P_1{V}_1}{T_1}=\frac{P_2{V}_2}{T_1}$

3. $V\times T$= constant

4. $\frac{V}{T}$=constant

Q. Which of the following plots represent the Charles' law for an ideal gas?

1. 
2. 
3. 
4. 

Q. Which gas law is used when only the volume and temperature of a gas are changing?

1. Charles' law
2. Boyle's law
3. Avogadro's law
4. Gay-Lussac's law

Q. The following graph describes Charles' law. If pressure ${\text{P}}_1<{\text{P}}_2<{\text{P}}_3$, match the pressure values to their correct plots.

1. ${\text{P}}_1$
2. ${\text{P}}_2$
3. ${\text{P}}_3$